Nortec ME Control - Manual (Page 64)

64 Fault elimination
Code Message Information
Warning Fault Possible causes Remedy
W22 E22 Water Inlet Tank (re)fill timeout. The Nortec ME Control stopped operation as the tank could
not be (re)filled within a preset time. The Nortec ME Control periodically tries to
fill the tank.
Note: If – at any time – the required water level is reached, the system will continue
with normal operation.
Water supply blocked: shut-off valve
closed/clogged, water pressure too low.
Check water supply (filter, pipes, etc.),
Check/open shut-off valve, Check water
pressure.
Water pressure too low. Check water supply system.
Water treatment unit (fully demineralised
water) is regenerating.
Wait.
Inlet solenoid valve blocked or defective. Check/replace Inlet solenoid valve.
Gravity drain solenoid valve open,
blocked in open position or not electri-
cally connected (currentless open).
Check, electrically connect or replace
gravity drain solenoid valve.
Leakage in the water drain system. Check/seal water drain system.
___ E23 Pump Error Control was not able to activate one or more stage pumps. Nortec ME Control
automatically stopped operation. The fault message must be reset after elimina-
tion of malfunction.
Stage fault detection option not correctly
installed.
Contact your Nortec representative.
Electrical pump connection broken. Electrically connect or replace respec-
tive pump.
Pump defective. Replace defective pump.
W28 E28 ME Service A warning is triggered if system service interval has exceeded. If the system service
is not performed and the system service counter is not reset within 30 days a fault
message is triggered.
Note: Nortec ME Control continuous with normal operation.
System service is due.
Perform system service and reset system
service maintenance counter.
W29 E29 UV Service A warning is triggered if UV service interval (replacement of UV bulb) has exceeded.
If the UV bulb is not replaced and the UV service counter is not reset within 30 days
a fault message is triggered.
Note: Nortec ME Control continuous with normal operation.
Lifetime of UV bulb(s) (option) expired. Replace UV bulb(s) and reset UV service
counter.
E30 No UV lamp The Nortec ME Control indicates fault as no UV lamp has been detected. Depend-
ing on the configuration of the “Shut Down” function (factory level) the Nortec ME
Control stops or continuous operation. The fault message must be reset after
elimination of malfunction.
UV bulb defective
Replace UV bulb. Reset UV service
counter, if all bulbs are replaced.
UV bulb not wired or wiring broken. Check wiring/Reconnect UV bulb.
––– E31 UV lamp OC Current consumption of UV lamp too high. Depending on the configuration of the
“Shut Down” function (factory level) the Nortec ME Control stops or continuous
operation. The fault message must be reset after elimination of malfunction.
UV bulb broken.
Replace UV bulb. Reset UV service
counter, if all bulbs are replaced.
Short circuit on UV option. Check wiring.